Improvement in wood-molding machines



N. M. MILLER.

WOOD-MOLDING MACHINE.

Patented Oct. 24,1876.

Inventor:

Wfifl w UNITED STATES PATENT OFFICE.

NILES M. MILLER, OF MOLINE, ILLINOIS.

IMPROVEMENT IN WOOD-MOLDING MACHINES.

Specification forming part of Letters Patent No. 183,697, dated October24, 1876 application filed January 10, 1876. A

To all whom it may concern:

Be it known that I, NILEs M. MILLER, of Moline, in the county of RockIsland and State of Illinois, have invented certain new andusefulImprovements in Wood-Molding Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to which it pertains to make and usethe same, reference being had to the accompanying drawing, which forms apart of this specification, and in which Figure 1 is a perspective view.Fig. 2 is a transverse vertical section through the plane indicated byline at w in Fig. 1; and Fig. 3 is atransverse vertical section throughthe plane indicated by line y 3 in the same figure.

Similar letters of reference indicate corresponding parts in all'thefigures.

This invention relates to that class of machines that are used for thepurpose of planing off and finishing semicircular and V- shaped woodeneavestroughing as it comes from the sawing-machine; and it consists inthe combination of a bed provided with parallel removable guides orforms, with feedrolls having projections and depressions correspondingto the shape of said guides or forms, substantially as I shall nowproceed more fully to describe.

In the drawing, A is the frame, andB is the bed,of the machine. This hasa series of parallel dovetailed slots or grooves, 0, into which areinserted, removably, the forms or guides G. The feed-rolls D and E (ofwhich there may be one or more sets) are constructed as shown in Fig. 2,the lower roll E having circumferential projections e, and the upperroll D having circumferential grooves f, arranged respectively at adistance from each other corresponding to the distance between the forms0 on the bed of the machine. The projections c on roll E correspond inshape and dimensions to the forms 0, and the circumferential grooves ordepressions in the upper rollD are of a configuration corresponding tothat of the outside of the troughing or stuff as it comes from thesawing-machine. The lower roll E is sunk into a recess in the bed of themachine in such a manner that its projections e are on a level with theforms or guides O, and the upper roll D is journaled in spring-bearingsin the usual manner, so as to exert pressure upon the stuff as it passesbetween the projections e and circumferential grooves or recesses f. Fis the cutter-head, to which are affixed, in the usual manner, knives orcutters for the shaping of the upper side of the stuff after it leavesthe feed-rolls D and E.

In the drawing, I have shown a set of three parallel triangular forms orguides, C, inserted into the parallel grooves or inortises c of the bedof the machine; but it is obvious that forms of any other shape may besubstituted, and also that their number may be increased or decreased atwill. The upper and lower feed-rollers D E are detachable from theirbearings, and may be changed for others corresponding to the shapes ofthe upper and lower surfaces, respectively, of the stuff fed into themachine.

I am aware that it is not new to use feedrolls having circumferentialprojections or depressions in a Wood-molding machine, and I do nottherefore claim such rolls, broadly; nor do I claim, broadly, abed-piece corresponding in shape to the configuration of said feedrolls;but

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows The bed B provided with parallel guides O, incombination with the feed-rolls D and E, constructed as described, andfor the purpose set forth.

In testimony that I claim the foregoing as my own, I have hereuntoaffixed my signature in presence of two witnesses.

NILES M. MILLER.

Witnesses:

Loors BAGGER, WM. BAGGER.

